Improvement in blacksmiths  tuyeres



UNITED STATES PATENT OEEIOE.

JOHN BAUER, OF BROOKLYN, E. D., NEW YORK.

IMPROVEMENT IN BLACKSMITHS TUYERES.

To all whom it may concern:

Be it known that I, JOHN BAUER, of Brooklyn,

v E. D., county of Kings, State of New York, have struct a tuyere-ironOf two parts, one of which is to remain fixed, while the other one canbe removed for the purpose Oi cleaning the apparatus Without disturbingthe whole. 2d, to prevent all leakage of wind, and force every particleof blast into the fire.

A is a round cast-iron case tted with atapering tubeat the side whichconnects with the blowing apparatus. This case is rinly embedded andpermanently fixed in the floor of the fOrge-ire.

B is a cast-iron box conforming' with the interior shape of the case A,but somewhat smaller, so as tO leave a narrow space all round betweenthe box B and the outer case A, which space is marked in the drawing bye. The box B is held in place by two projections, ff, cast onto theupper edge of the said box B, which lit in corresponding recesses at theinterior Of the case A. The top of the box B and case A form a concavesurface of the usual shape of a tuyereiron. The blast enters through thetube O and escapes partly through the space e, partly passes through anaperture, g, into the interior Of the box B, and there escapes throughholes d d in the topof the said box.

I claim as my invention- A tuyere-iron, consisting of an outer case, A,and an inner box, B, constructed substantially as and for the purposeherein set forth.

JOHN BAUER.

Witnesses:

ALBERT H. HOOK, G. A. BROWN.

